MECHANICAL-HYDRAULIC BRAKE BOOSTER HAVING AN EXPANSION FOR AUTONOMOUS BRAKING

摘要

A brake booster for a vehicle, including: a cylinder housing having a center bore for receiving a user-operated push-rod piston for building up a fluid pressure inside of the cylinder housing in response to actuation of the push-rod piston, a first fluid line being in fluid communication with an axial recess in the cylinder housing, and a second fluid line being in fluid communication with the center bore in a cylinder housing region, the first and second fluid lines each being connected to a fluid reservoir at their respective other ends; a third fluid line, which interconnects the first and second fluid lines in a fluid manner; a first electrically and/or hydraulically and/or mechanically operable valve, which is situated in the third fluid line; a second electrically and/or hydraulically and/or mechanically operable valve, which is situated in the second fluid line, namely, in back of a fluid connection of the third fluid line to the second fluid line, when viewed in the direction of the fluid reservoir; and a build-up of fluid pressure being able to be generated autonomously with the aid of the first valve, when the second valve interrupts a fluid stream in the second fluid line.

主权项

1. A brake booster for a vehicle, comprising:
a cylinder housing including a center bore for receiving a user-operated push-rod piston for building up a fluid pressure inside the cylinder housing in response to actuation of the push-rod piston; a first fluid line in fluid communication with an axial recess in the cylinder housing; a second fluid line in fluid communication with the center bore in a cylinder housing region, wherein the first and second fluid lines each is fluidly connected to a fluid reservoir at their respective other ends; a third fluid line that interconnects the first and second fluid lines in a fluid manner; a first valve that is at least one of electrically operable, hydraulically operable, and mechanically operable, wherein the first valve is situated in the third fluid line; and a second valve that is at least one of electrically operable, hydraulically operable, and mechanically operable, wherein the second valve is situated in the second fluid line, in back of a fluid connection of the third fluid line to the second fluid line, when viewed in the direction of the fluid reservoir, wherein a build-up of fluid pressure is generated autonomously with the aid of the first valve, when the second valve interrupts a fluid stream in the second fluid line.